Corner bead



. June 16, 1925.- F. E. PLANETT ICORNERYBEAD Filed April 30, 1924 iii.

.#1, mm n m mm Z "I JD Patented June 16, 1925.

I UNITEDTSTATESS 1,542,317 PATENT OFFICE.

FRED E. PLANETT, OF OAKLAND, CALIFORNIA, ASSIGNOR TO PLAN ETT MANUFACTUR- ING COMPANY, OF OAKLAND,' CALIEORNIA, A CORPORATION OECALIEORNIA,

I, c c. Gonna BEAn,

Applieation filed Agra so, 1924. Serial No. 709,990.

To all whom it may concern:

.Be it known that I, FRED E. 'PLANETT, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Corner Beads, of whichthe following is a specifi cation. V 7 I I My'invention relates to metallic angle or corner beads, and inparticular to that type employed at the angles in plaster and eement-construction work, both indoors and out. 1

The present invention is an improvement to that of the same class set forth in my copending application Serial Number 7 08,- 214, filed April 22, 1924.

" Present corner beads of metal that I am familiar with, consist of a'unit strip of sheet-metal formed angularly with two flanges and with a small roundri'dge at the meeting angle. Each flange ,of 'the bead is perforated with holes, th'e'plaster oozing through the holes as the sameis being spread on the furred walls, the ridge acting as a thickness gage for the spread plaster and the holes serving as a key for holding the plaster at the angles. I

For indoor work this type of bead, when the plaster is not too hard, serves fairly well, but when applied to the angles of exterior work it is not efiicient, because cement-coated walls employ a harder and stiffer plaster and are reinforced with wire lathing. The latter should extend around the corners and angles,'but owing to the difficulties encountered in trying to position the present corner bead over the irregularly bent and more or less unyielding wire mesh lathing, it is easier to aifix the corner bead direct to the wood or sheathing support,then cut and fit the wire lathing to the bead flange. This is invariably carelessly done, resulting in due time in a cracked wall near the corner. Also the spread plaster does not thoroughly get through the holes and behind the flanges to fill up the angle space therebetween. For durable construction, the plaster at the corners and angles should be Well worked in thereat.

The major object of my invention is to overcome the above difficulties and inefii ciencies by the provision of an all-wire corner bead of simple construction and carrying its own fastening means for securement to a corner or angle, and thereby reduce the number of parts and instrumentalities at the bead placement to a minimum.

Another important object is the productionvof a bead of this character that is easily applicable, and that will permit the plaster or other coating to thoroughly and easily mesh around and between the wire elements. I l

Another important object isthe provision of a corner bead that can be just as easily applied to a corner having wire mesh lathing thereon and extending around the same as 1n work, as a cornernot requiring such reinforcement as in indoor work. y c

A further object isto provide the bead with rigid abutting or bearing surfaces, for definite and accurate outstanding spacing means forthe longitudinal rod of the head.

I attain the above objects by the novel construction of my corner bead, and other objects and advantages of the invention will appear in the subjoined description of the accompanying sheet of drawings, in which:

Figure '1 is a horizontal section of a corner of outdoor construction work, such as the corner of a cement-coated bungalow, and has my invention applied thereto, the dotand-dash lines representing the driving head and prong before being driven to final position.

Fig. 2 is a side elevation of Fig. 1 showing my invention in full and before being driven in; but part of the corner construction is shown, the plaster having omitted in order to show how easily my corner bead can embrace the wire mesh lathing, and the staple end enter any mesh opening.

Adverting to the drawings: the numeral 5 represents an outside corner of a building, such as a bungalow, and to the surface of which has been applied in any of the usual ways the building-paper 6 and the wire mesh lathing 7 for plaster reinforcement. The lathing has been turned or extended around the corner as shown clearly in Fig. 1, and outstands a fixed distance from the wall surface by common furring devices (not shown).

Mly invention consists of a stout and stiff wire rod 8 having lateral branches in the ideal outdoor corner-construction been form of a shouldered and pronged staple 9, 10 being the shoulder and bearing surface to outstand the rod 8 a definite predetermined distance from the corner, and l the prong for securing the device in place. 3 is a recurved portion of the wire staple intermediate the said shoulder and prong and forms the driving head for the device. The prong is off-set to the plane of the staple as shown to advantage in Fig. 2, as at 12, for clearance in driving.

The staples arealso of wire and of lighter gage than therod, and are rigidly secured to the rod preferably by spot-welding as I have found this manner of securement very practical. The welded parts result in an integral and homogeneous efiicient union as shown in section at 11, Fig. 1.

The staples are spaced at intervals along the rod and secured thereto at right angles and in alignment. The bearing faces of the staple are normally positioned at right angles to each other.

In the application of the corner bead, the stapleterminals are simply inserted through the wire mesh openings [14, and the bearing faces and shoulders will immediately seat the bead, and any or all of the prongs 4 may then be driven in'by striking the high point of the driving head 3 with a hammer.

In Fig. 1, 16 represents the first coat of plaster which is spread flush with the furring surface and the furred outstanding depth of my staple legs, and L7 represents the finishing coat of plaster spread flush with the outer surface of the rod 8.

It is evident that when my corner bead is used, the plaster or. cement, Whether soft or hard and stiff, will easily mesh around the rod and wire staple and leave no voids or unfilled spaces subject to corrosion and weakness of the corner structure.

Having thus illustrated and described my invention, what I claim as new and desire to secure by Letters Patent of the United States, is the following:

1. A corner bead for plastered Walls comprising a stiff longitudinal rod having wire staples integrally secured thereto at spaced intervals and in alignment, the extremities of each staple being recurved to form driving prongs, and said staples provided with shoulders adjacent said prongs for spacing purposes.

2. A corner bead for plastered walls comprising a stiff longitudinal rod having wire staples integrally secured thereto at spaced intervals and in alignment, the extremities of each staple being recurved to form driving prongs, and said staples provided with shoulders adjacent said prongs for spacing purposes, the said driving prongs oifset to the plane of the staple for clearance in drivm 3,. A corner bead ,of the character described, comprising a stiff longitudinal rod having staples integrally an rigidly connected thereto at spaced intervals and in alignment, said staples provided with shoulders to abut the wall and outstand the rod from the wall a predetermined distance, and each of said shoulders having an extension bent back toward said shoulder to form the driving ead and prong of the staple for holding the bead to the corner.

In testimony whereof I my signature.

FRED E. PLANETT. 

